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Grittyville, WA

The young plants can hardly get enough magnesium even though its probably there in the soil. I think young plants just require more than older plants, also more phosphorus. Not sure how other growers get their phosphorus and magnesium so dialed in. But poor weather and no heating cables... probably mine won't be dialed in until July.

The reason for needing more phosphorus and magnesium might be the demands of the roots, which are high for young plants, especially when the roots may be encountering some adversity? Not sure.

These are actually some of the happiest plants I've ever had but there are no doubt critical deficiencies.

[Last edit: 05/21/25 11:11:50 PM]

5/21/2025 10:55:19 PM

Grittyville, WA

But this interveinal chlorosis could also be low manganese... I can't tell.
Manganese deficiency looks nearly the same as a magnesium deficiency I think. But... I'm very sure there's enough nitrogen and potassium. Thats the sure thing.

5/21/2025 11:09:10 PM

Grittyville, WA

Tissue test is posted now. The test said there was adequate magnesium. The manganese was also adequate but lower than the magnesium. Nitrogen was very high as expected. Hence, the chlorosis here might not indicate a true nutrient deficiency? I hope more people will snapshot the leaves they are sending in.

Whenever you select down to one plant, this is a good time to send a sample into the lab because then you dont have to sacrifice any leaves off the remaining plant. Talk about taking one for the team...

[Last edit: 05/30/25 1:57:17 PM]

5/30/2025 1:51:12 PM